Labor has promised to spend $600 million to build dual carriageway from Nelson Bay to Fern Bay if it wins and retains government over the next eight years.
Shadow Minister for Roads, Maritime and Freight Jodi McKay and Port Stephens MP Kate Washington made the announcement on Tuesday beside Nelson Bay Road at Salt Ash, across the road from where Premier Gladys Berejiklian and Port Stephens Liberal candidate Jaimie Abbott pledged $205 million in January.
In dollars and scope, the Labor commitment trumped the Liberal promise to duplicate the road from Williamtown to Bobs Farm within three years of an elected Liberal government.
About 1.8km of that 10.9km stretch is already divided dual carriageway.
Ms Abbott and Roads Minister Melinda Pavey also announced $188 million for a Fingal Bay link road last week as both sides show largesse before the March 23 state election.
The two major parties have now promised more than $1.5 billion for roads in Port Stephens and the Upper Hunter, the only two marginal seats in the region.
The only Hunter road promise outside the two marginal seats has been Labor's commitment to the $32 million Pennant Street bridge linking Glendale and Cardiff.
Ms Berejiklian also committed $780 million on Sunday to redevelop John Hunter Hospital, a pledge Labor quickly promised to match.
The Labor MPs said full duplication of Nelson Bay Road would be completed in three stages, from Medowie Road to Stockton, Williamtown to Bobs Farm, and Anna Bay to Nelson Bay.
Ms Washington said a Labor government would consult with Roads and Maritime Services before deciding which section it would complete first.
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